All about ALH Files

The ALH file type is primarily associated with Log Viewer.

ALHFile Extension ALH
 File extension: ALH
File type:  log file

What is an ALH file?

ALH files mostly belong to Log Viewer. ALH files are used to store log data in systems that track events.
They mainly serve two functions:
  • Alarm History Logs: These files record alarm events, status changes, and related notifications. They are often encoded in UTF-16 (LE) to support a wide range of characters.
  • Audit & Insurance Logs: Some ALH files contain records related to auditing and insurance policies. They keep a history of events that may affect policy details or audit trails.
    • FilExt.com note: This file format is usually handled by specialized log viewer software or can be opened with a text editor that supports UTF-16 encoding. For systems by companies such as Comau, vendor-specific software may be used to display these logs correctly.

    How to open ALH files

    You need a suitable software like Log Viewer to open an ALH file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ALH file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ALH file directly in the browser:. Just drag the file onto this browser window and drop it.

    Online ALH Text Viewer

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    Programs that open and convert ALH files:

    1. Log Viewer
      See the previous paragraphs to learn more about the main application. ALH files are often referred to as Log Viewer data files because this type of file is primarily created or used by this software.
    2. Aladdin Interactive DSP (Model Header File) by Hitech Development AB
      Include file for C/C++ programs using Aladdin/DSPgate for realtime DSP applications. Include file generated from Aladdin Interactive DSP Workbench for integration in applications based on Aladdin Executive DSP program and DSPgate driver.

    Technical Data for ALH File Extension

    File classification:
    Data
    Related files:
    aem, ald, alt, x_t, log, txt, csv, xml, dat

    an alh log file is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with ALH files

    • Associate the ALH file extension with the correct application.
    • Update your software that should actually open log files. Because only the current version supports the latest ALH file format. Search, therefore, e.g. on the manufacturer website after an available Log Viewer update.
    • To make sure that your ALH file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
    • Click here to open your .ALH file online - secure, fast, and no downloads needed.
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